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(No Model.)

G. DOWNIE & A. P. EISAN.

MILL STOCK FEEDER.

No. 320,054. I Patented June 16, 1885.

Unrrnn GEORGE DOWNIE AND ALBERT F. EISAN, OF MARYSVILLE, CALIFORNIA.

MILL-STOCK FEEDER.

SPECIFICATION forming part of Letters Patent No. 320,054, dated June 16, 1885.

Application filed March 20, 1885.

To all whom it may concern.-

Be it known that we, GEORGE DOWNIE and ALBERT F. EISAN, of Marysville, county of Yuba, and State of California, have invented an Improvement in Mill-Stock Feeders; and we hereby declare the following to be a full, clear, and exact description thereof.

Our invention relates to a new and useful automatic feeder, the object of which is to sup ply mil1-stoek to a grinding, separating, or purifying machine.

' Our invention consists in a feed board, mounted peculiarly in a frame on the vibrating shaker, which is connected with a purifier or rolls, as the case may be, said board being located under the hopper and adapted to feed the middlings and stuff into the shaker, by which it is discharged into the machine with which it is connected, all of which we shall hereinafter fully claim and explain by reference to the accompanying drawings, in which Figure 1 is a front elevation of our feeder. Fig. 2 is a side elevation of the same.

A is the shaker, consisting of a square frame, which is to be connected with the machine either for grinding, separating, or purifying. This shaker is given a vibratory movement by means of an eccentric, under about one thousand revolutions.

B are side boards mounted on the shaker, and carrying in their top the feed-board G, which, by one side or end, is pivoted on a cross-shaft, c. To its other side or end is secured an angled rod or bar, D, the upper arm, (I, of which is at right angles and fits down loosely over a rod, E, which extends upwardly from the shaker A, its lower end being secured in a casting, F, thereon. Around the rod E is a coil-spring, c, on the upper end of which the arm d of rod D rests. Athumb-screw, e,

on the rod E bears up under the lower end of spring e, supporting it, and at the same time being adapted to regulate its tension.

It will (No model.)

thus be seen that the feed-board G is not rigid; but, by reason of its pivot at one side and its spring or cushion support at the other, it receives a vertically-vibrating motion from the vibratory movement of the shaker below.

G is the hopper, supported above and independently of the feed-board.

Having thus described our invention, what we claim as new, and desire to secure by Let ters Patent, is-

1. In a feeder for mill-stock, the swinging feed-board O, the shaker, and the rod or bar D at one side, in combination with the rod E on the shaker, and the spring a on the rod, supporting the arm of rod D, substantially as and for the purpose herein described.

2. In a feeder for mill-stock, the shaker A, the rod E thereon, and the spring 6 on the rod, in combination with the sides 13 on the shaker, the feed-board O, pivoted in the sides, and the bar or rod D on the other side of the board, fitted upon rod E and resting on its spring, substantially as herein described.

3. In a feeder for mill-stock, the swinging 0r pivoted feed-board C, the shaker, and a bar or rod, D, in combination with the rod E on the shaker, the spring 6 on the rod, supporting the rod D, and the thumb-nut e, supporting and regulating the spring, substantially as herein described.

4. A feeder for mill-stock, comprising the vibrating shaker A, the sides 13, pivoted feedboard 0, having rod or bar D, the rod E on the shaker, having spring 0, supporting the arm D, and the hopper G over the feed-board, all arranged and adapted to operate substantially as herein described.

In witness whereof we have hereunto set our hands.

GEORGE DOWNIE. ALBERT F. EISAN. Witnesses:

WV. F. PEACOOK, J OSEPII BO\VEN. 

